/* global moment */
// jscs: disable disallowSpacesInsideParentheses

var parseDateFormats,
    displayDateFormat,
    verifyTimeStamp,
    parseDateString,
    formatDate;

parseDateFormats = ['DD MMM YY @ HH:mm', 'DD MMM YY HH:mm',
                        'D MMM YY @ HH:mm', 'D MMM YY HH:mm',
                        'DD MMM YYYY @ HH:mm', 'DD MMM YYYY HH:mm',
                        'D MMM YYYY @ HH:mm', 'D MMM YYYY HH:mm',
                        'DD/MM/YY @ HH:mm', 'DD/MM/YY HH:mm',
                        'DD/MM/YYYY @ HH:mm', 'DD/MM/YYYY HH:mm',
                        'DD-MM-YY @ HH:mm', 'DD-MM-YY HH:mm',
                        'DD-MM-YYYY @ HH:mm', 'DD-MM-YYYY HH:mm',
                        'YYYY-MM-DD @ HH:mm', 'YYYY-MM-DD HH:mm',
                        'YYYY年MM月DD日 @ HH:mm', 'YYYY年MM月DD日 @ HH:mm',
                        'DD MMM @ HH:mm', 'DD MMM HH:mm'],
//displayDateFormat = 'DD MMM YY @ HH:mm';
displayDateFormat = 'YYYY年MM月DD日 @ HH:mm';



// Add missing timestamps
verifyTimeStamp = function (dateString) {
    if (dateString && !dateString.slice(-5).match(/\d+:\d\d/)) {
        dateString += ' 12:00';
    }
    return dateString;
};

// Parses a string to a Moment
parseDateString = function (value) {
    return value ? moment(verifyTimeStamp(value), parseDateFormats, true) : undefined;
};

// Formats a Date or Moment
formatDate = function (value) {
    return verifyTimeStamp(value ? moment(value).format(displayDateFormat) : '');
};

export {parseDateString, formatDate};
